UA2 Collaboration,P. Bagnaia,M. Banner,R. Battiston,Ph. Bloch,F. Bonaudi,K. Borer,M. Borghini,J. -C. Chollet,A. G. Clark,C. Conta,P. Darriulat,L. Di Lella,J. Dines-Hansen,P. -A. Dorsaz,L. Fayard,M. Fraternali,D. Froidevaux,G. Fumagalli,J. -M. Gaillard,O. Gildemeister,V. G. Goggi,B. Hahn,H. Hänni,P. Hansen,T. Himel,V. Hungerbühler,P. Jenni,O. Kofoed-Hansen,E. Lançon,Michele Livan,S. Loucatos,B. Madsen,P. Mani,B. Mansoulié,G. C. Mantovani,L. Mapelli,B. Merkel,R. Møllerud,C. Onions,G. Parrour,F. Psstore,H. Plothow-Besch,M. Polverel,J. -P. Repellin,A. Rimoldi,A. Rothenberg,A. Roussarie,G. Sauvage,J. Schacher,J. L. Siegrist,H. M. Steiner,G. Stimpfl,F. Stocker,J. Teiger,V. Vercesi,A. Weidberg,H. Zaccone,W. Zeller;UA2 Collaboration;P. Bagnaia;M. Banner;R. Battiston;Ph. Bloch;F. Bonaudi;K. Borer;M. Borghini;J. -C. Chollet;A. G. Clark;C. Conta;P. Darriulat;L. Di Lella;J. Dines-Hansen;P. -A. Dorsaz;L. Fayard;M. Fraternali;D. Froidevaux;G. Fumagalli;J. -M. Gaillard;O. Gildemeister;V. G. Goggi;B. Hahn;H. Hänni;P. Hansen;T. Himel;V. Hungerbühler;P. Jenni;O. Kofoed-Hansen;E. Lançon;Michele Livan;S. Loucatos;B. Madsen;P. Mani;B. Mansoulié;G. C. Mantovani;L. Mapelli;B. Merkel;R. Møllerud;C. Onions;G. Parrour;F. Psstore;H. Plothow-Besch;M. Polverel;J. -P. Repellin;A. Rimoldi;A. Rothenberg;A. Roussarie;G. Sauvage;J. Schacher;J. L. Siegrist;H. M. Steiner;G. Stimpfl;F. Stocker;J. Teiger;V. Vercesi;A. Weidberg;H. Zaccone;W. Zeller;
the european physical journal c
1983
Vol. 20
pp. 117-134